Pressure relief valve, to relieve medium pressure from air hoses.
- Whistle Warning Unit – High pressure (HPWWU), indicating cylinder pressure to a volume of approximately 55 bar
- Whistle Warning Unit – Medium pressure (MPWWU) for use with independent … More information
air line source. Indicating cascade system or ring main pressure at approximately 4.5 bar.
Suitable for use in explosive atmospheres (ATEX Zone 1).